This demonstration/activity introduces students to the concept of limiting reagent in a chemical reaction. Too often, students think that one can produce more product by using larger quantities of reactants. This demonstration/activity is specifically designed to surprise students and to make them appreciate the concept of stoichiometric quantities.
Related Resources:
Understanding Life Systems - Interactions in the Environment
Categories: Lab/Student Activity, Lesson Plan
Written by Olivia Yoshimoto, Don Galbraith Award Winner 2020-21, OISE University of Toronto These two 50-minute period lesson plans for Grade 7 students in the Understanding Life Systems strand... read more
VIDEOCONFERENCING TO CONNECT STUDENTS WITH SCIENCE & STEM EXPERTS
Categories: General Interest, Lab/Student Activity
Videoconferencing allows students to connect to science professionals, engineers and other STEM experts and provides relevant real-world contexts and personal stories that help students engage with... read more
Teacher Demo/Student Activity: Potato Osmosis
Categories: Lab/Student Activity, Teacher Demonstration
Osmosis is the process by which the concentrations of two solutions, separated by a selectively permeable membrane, equalize by the movement of a solvent such as water. This demonstration shows that... read more